Unmaintained Custom Plugins

Unmaintained and therefore possibly dangerously broken third party plugins. Maintained plugins can be found at CustomPlugins. If you own one of these, please move it and update the "Updated as of:" field.

WrongMXA plugin that determines if an email was sent to a lower preference MX when a higher preference MX was probably available. Created by: Daryl C. W. O'Shea Contact: spamassassin -at- dostech -dot- ca License Type: public domain Status: active Maintained as of: Old Added: 2005-01-15 Available at: WrongMXPlugin

AuthzUserA example plugin using the services_allowed_for_username hook (available in 3.1 dev tree) that determines if a username is authorized to use a particular service. Created by: Michael Parker Contact: parkerm -at- pobox -dot- com License Type: public domain Status: active Maintained as of: Old Added: 2005-01-15 Available at: AuthzUserPlugin

ReplaceTagsA plugin to create character classes, which can be used in your rules to increases the chance of matching. Created by: Felix Bauer Contact: dev - at - doph -dot- com License Type: Public Domain Status: active Maintained as of: Old Added: 2005-01-18 Available at: ReplaceTagsNote: Please read the POD

PublicCheckToA plugin that tests for email sent to public addresses, (such as mailing lists) it can optionally allow "If the email is to this address, its probably spam UNLESS it is a reply." It does this by checking the In-Reply-To header against known message IDs.Created by: Jamie HoglundContact: http://www.geniegate.com/contact.phpLicense Type: Free Status: beta Maintained as of: Old Added: 2005-02-10 Available at: http://geniegate.com/other/spamref/index.phpNote: For the In-Reply-To to work, it needs a storage implementation. (Included are SQL and flat file)

!UIUCMail::SpamAssassin::UIUC is a project to connecting the CITES Spam Control (CSC) project, which runs on all mails sent to @uiuc.edu addreses (plus internal CITES mail servers like express.cites.uiuc.edu), and SpamAssassin, which is used at many smaller sites for all incoming mail. The goals were to a) make sure that the work from CITES' servers is not removed by SpamAssassin and b) hopefully use the information received from those servers as well.Created by: Tim Skirvin Contact: tskirvin@ks.uiuc.eduLicense Type: Same as SpamAssassinStatus: It works, and will probably be maintained to match the campus setup. Maintained as of: Old Added: 2005-03-30 Available at: http://www.ks.uiuc.edu/Development/MDTools/spamassassin-uiuc/Note: This distribution is actually released as a full patch to SpamAssassin, for ease of use by the UIUC community. More information on modified files is available at the main website.

Mail::SpamAssassin::Plugin::iXhashMail::SpamAssassin::Plugin::iXhash is based on the procmail-based project 'NiXSpam', created and maintained by Bert Ungerer, editor with the German IT-magazin 'iX' (http://www.heise.de/ix/). Basically redundant information is removed from the body of a mail, then a MD5 hash is computed from the rest and compared to a given database of known spam. The actual comparison is realised via DNS. See code for more info. Read up at http://www.heise.de/ix/nixspam/ for even more.No further development, usage discouraged. .Created by: Dirk BonengelContact: dirk.bonengel@login-solutions.deLicense Type: Same as SpamAssassinStatus: no further development Maintained as of: Old Added: 2005-07-02 Available at: iXhashNote: Please read the POD too

URICountryThis plugin provides meta data for scoring URIs based on the country in which they are hosted enabling easy creation of rules for any countryCreated by: Derek HardingContact: derek_sa -at- atuin -dot- net License Type: Same as SpamAssassinStatus: active Maintained as of: Old Added: 2005-08-09 Available at: URICountryPlugin

CustomDeleteTagThis SpamAssassin plugin module allows users to specify a value that will be added to the message header, for all messages, specifying what value/score it is safe to delete the message. Obviously, you need some other process that looks at this header and performs the action, since SpamAssassin only filters and does not delete. Created by: Michael Parker Contact: parkerm -at- pobox -dot- com License Type: Apache License, Version 2.0 Status: active Maintained as of: Old Added: 2005-12-14 Available at: CustomDeleteTag

Persistent Database PluginThis plugin module provides persistent database connections. It uses the DBI interface in much the same way that Apache::DBI does, in fact a large portion of the inspiration comes from that module.

To use, all you need to do is load the plugin module, via loadplugin, and it will automatically step in and handle your database connections.

WebRedirectFetches web pages linked to in messages and provides their contents in a pseudo-header that can be used in custom header rules.

Two eval tests are also provided to report links that return an HTTP status of either 403 (Forbidden) or 404 (Not Found).

Limited decoding of data contained in pages is also attempted. The decoded data is provided in an additional pseudo-header that is made available to custom header rules. Created by: Daryl C. W. O'Shea Contact: spamassassin -at- dostech -dot- ca License Type: Apache License, Version 2.0 Status: active Maintained as of: Old Added: 2005-12-15 Available at: WebRedirectPlugin

Stats PluginKeeps real-time statistics inside of a MySQL database. Statistics are rotated on a daily basis and contain user totals for that day; including total ham, spam, and messages processed. A "$TOTALS" field provides the complete summary of messages processed by the system for the day. Created by: James Keating Contact: jamesk -at- okeating -dot- net License Type: Apache License, Version 2.0 Status: active Maintained as of: Old Added: 2005-12-17 Available at: StatsPlugin

OCR PluginChecks for specific keywords in image/gif attachments, using gocr. This can be used to detect spam that puts all the real contect in an attached image, accompanied with random text and html (no URL's, etc). Created by: Maarten de Boer Contact: mdeboer -at- iua -dot- upf -dot- edu License Type: Same as SpamAssassinStatus: active Maintained as of: Old Added: 2006-03-27 Available at: OcrPluginNote: this is my first SA plugin, so any feedback is welcome. Please test and send reports.

OCR scanner and image validator SA-plugin

Checks for specific keywords in gif/jpg/png attachments, using gocr. This can be used to detect spam that puts all the real contect in an attached image, accompanied with random text and html (no URL's, etc). There are also various rules to validate attached images and detect forged content types or broken images. This plugin needs SpamAssassin 3.1.1 or later. The version 2.0 is able to defeat recent gif animations which use gif tricks to avoid OCR.Created by: Martin Blapp Contact: mbr@freebsd.orgLicense Type: BSD Status: active Added: 2006-04-09 Maintained as of: Old Available at: http://antispam.imp.ch/patches/ocrtext-3.2.tgzNote: Feedback and new sample images are welcome. Please test and send reports.

Fuzzy OCR PluginDerived from OcrPlugin (see above), but has many feature enhancements, including an approximate matching algorithm to compensate recognition errors and obfuscation, support for broken gifs, jpeg and png, dynamic scoring, automatic content-type independant format detection and many more.Created by: Christian Holler Contact: decoder_at_own-hero_dot_net License Type: Same as SpamAssassinStatus: active Maintained as of: Old Added: 2006-08-08 Available at: FuzzyOcrPluginNote: Feedback and new sample images are welcome. Please test and send reports.

Relayed By DialupThis plugin tries to find out if the delivering host has its IP coded in the DNS-record. it doesn't lookup the IPs itself, but takes the data from the Received-Headers.Created by: Lars Uffmann, converted to a Module: Cord Beermann Contact: lu -at- cachescrubber.org, cord@Wunder-Nett.orgLicense Type: same as Spamassassin Status: active Maintained as of: Old Added: 2007-02-14 Available at: RelayedByDialupSample Results: on my setup hits of this test are 97% spam, the rest is ham

AddressbookThis provides a way to automatically give a negative score to all addresses in an addressbook, which may be updated dynamically. It's not the same as whitelisting all addresses because spammers may know about some of them, so we don't want to whitelist, only give a small negative score. It's not the same as autowhitelist (AWL), which is an unlabeled learner, i.e. it just smooths scores per sender over time, but doesn't help senders who have consistently high scores.Created by: Karl Chen Contact: < quarl@nospam.quarl.org > License Type: Public domain Status: activeMaintained as of: Old Added: 2007-03-26 Available at: http://git.cubewano.org/git/spamassassin-addons/plain/plugins/addressbook.pm

sa2dnsblIf you want to build your own rbldns System and reuse the Filtering results of Spamassassin this package could be the sollution. It is a UDP based client-server application which reports all spamming IP's to one Server. A worker thread (cronjob) creates the IP list to block. This sollution take use of the rbldns server included in the djbdns distribution.

The package includes three components. The sa2dnsblc Plugin for Spamassassin, the sa2dnsbld Server and finally the sa2dnsblw Worker. Installation instructions are included in sa2dnsbld.pl

Log Scanned MessagesThis plugin will write a copy of every mail scanned to the C</tmp/spamassassin_scanned_msgs> directory (creating that dir if it doesn't already exist). This may be very useful when attempting to debug certain error conditions that only manifest with certain input messages.Created by: Justin Mason Contact: http://jmason.orgLicense Type: Apache License, Version 2.0 Status: Active Maintained as of: Old Added: 2007-08-07 Available at: http://taint.org/x/2007/LogScannedMessages.pm

FreemailChecks if message is sent from a "freemail" account. Also checks a specific spam sign, if a message has Reply-To or email mentioned in body pointing to a different freemail account.Created by: Henrik Krohns Contact: sa -at- hege.li License Type: Apache License, Version 2.0 Status: Active Maintained as of: Old Added: 2008-03-21 Available at: Integrated in SpamAssassin 3.3 (see links http://sa.hege.li/)

Mail::SpamAssassin::Plugin::p0fOSFetches the OS info from a database populated from p0f and inserts it in a header for use in scores and bayes. The database can reside on and/or be populated from a different system (such as a firewall or router).Created by: Jonas Eckerman Contact: jonas@frukt.orgLicense Type: Public Domain Status: active Maintained as of: Old Added: 2008-05-29 Available at: http://whatever.frukt.org/p0fstats.text.shtml#p0fOS.pmNote: To use you also need the scripts (from the same place as the plugin) and the p0f OS fingerprinting application.

Mail::SpamAssassin::Plugin::MimeMagicChecks for mismatches between a parts MIME type and its actual content.Created by: Jonas Eckerman Contact: jonas@frukt.orgLicense Type: Public Domain Status: active (experimental) Maintained as of: Old Added: 2008-05-29 Available at: http://whatever.frukt.org/spamassassin.text.shtml#MimeMagic.pmNote: Some mismatches really aren't, so the plugin can have a map between types that are considered equal.

DKIM Reputation PluginReplacement of the DKIM.pm plugin with additional inclusion of reputation data from www.dkim-reputation.org. This aids especially to block known spam accounts at freemailers and spammers sending DKIM signed spam with their own domains. Additionally positive reputation will be used in the future to reduce the false positive problem (positive scoring can be disabled). Currently an appropriate ruleset to distinct between neutral and good reputation is elaborated, feedback is welcome. Requires SpamAssassin 3.1.2+ Created by: Florian Sager Contact: http://www.dkim-reputation.orgLicense Type: Apache License, Version 2.0 Status: active Maintained as of: Old Added: 2008-11-23 Available at: http://www.dkim-reputation.org/spamassassin/

Mail::SpamAssassin::Plugin::ExtractTextUses plugin extractors and/or external tools to extract text from message parts. Extractor plugins can extract parts that will be fed into the plugin for checking, so for example a an image OCR extractor could get to check images extracted from a PDF by another extractor. How to extract what from what is very configurable. Included are configs for MS Word, RTF, OpenDocument and PDF files, and a very simplistic OpenXML plugin. Created by: Jonas Eckerman Contact: jonas@frukt.orgLicense Type: Public Domain Status: active Maintained as of: Old Added: 2009-07-10 Available at: http://whatever.frukt.org/spamassassin.text.shtml#ExtractText.pmMirror: http://mmm.truls.org/m/ExtractText.zip